I know the parchment paper is a bit wasteful but I do find it works incredibly well, and I generally manage to get 2 bakes out of each piece.

Yes, I definitely go into 'scrimp an save' mode with parchment paper and re-use it a couple of times before discarding. Actually I might use one piece 2x on each side. So one roll lasts me a while, even though I bake a lot.